Roll No. ......................

T°!r"No. of Questions: '09] [Total No. of Pages: 02

B.Tech. (Sem. -3rd)

BUILDING MATERIALS

SUBJECT CODE: CE -205

Paper ID : [A0603][Note: Please fill subject code and paper ID on OMR)

Maximum Marks: 60. ,Time: 03 Hours

. InstructiQn to Candidates:

1) Section -A is Compulsory.. .

2) Attempt any Four questions from Section - B.

3). Atte~pt any Two questions from Section - C.Section - A

Q1)

a)

b)

c)

d)

e)

(lOx2=20)

Classify the following stone and give their specific use in buildingconstruction:

(i) Granite..(ii) Sandstone.. (ii9 Marble.(iv) Slate.

How are bricks classified? How do th~y differ in compressive strength?

What are the characteristics of a good lime?

Differentiate between Portland Cement and white cement.

What is Reinforced CementCo~crete?What are its advantages over Plaincement concrete? .

f)

g)

h)

i)

j)

What is meant by water cement ratio?

What is meant by voids in fine aggregate? How is it m~asured?.Distingui~h between white washing and distempering.

Define sheet glass and plate glass? Give their uses.

What are differences between asphalt and bitumen?

'"

M-608 [1859J P.T.D. .

(4 x 5~20)

Q2) What are artificial stones? What their advantages and disadvantages?

Section -B

Q3) If you were moulding bricks in a field where the clay was more ~andy,whatprecaution you would take to ensure that the burnt bricks measure the samesize?

Q4) Explain the terms:. (a) Real mix.

(b) Field mix.(c) Nominal mix.

Q5) Describe two methods of seasoning of timber." "

Q6) How do yon proceed to paint on an old work? What is meant by coveringpower of the paint?

Section - C(2 x-10 = 20)

Q"7) A bungalow with open verandah and flatroofis to be constructed in Punjab.Write briefly about the materials you specify for the following parts of thebuilding giving reasons for your choice:(a) foundation.(b) superstructure masonry.(c) Paneled windows and doors.(d) roof.(e) floor.

Q8) Describe the importance of the follo,wing in"RCC work.(a) "Water Cement Ratio. (b) Compaction of concrete.(c) Curingof the Concrete. "(d)" Fineness modulus.

(e) Bulking of Sand.

Q9) Write short notes on

(a) Ferro-cem~rit.(c) Efflorescence.

(b) Terazzo finish.

(d) Creep "and~hrinkageof cqncrete.

++++

M-608 2